Robert, No my lake was not a strip mine. It was dug about 45 years ago, actually it sits higher than the corn fields around it, so there's hardly any runoff to it. It's spring fed totally. It would be classified a "clear infertile lake". Since I just bought this property, I'm not sure exactly whats in it. Clear water is just so hard to fish, I'm sure the coontail has alot to do with the clarity and I don't want to get rid of it. I was toying w/ the idea of trout but will have to wait till summer to see how cool the water stays. I've caught more big fish from dirty ponds than I have from clear ones, and I've fished plenty of both, I'm just afraid I don't have as healthy of a lake as I could have and would like some advice on how to kick start a good bloom this spring.You can e-mail me at bassnut17@yahoo.com Would love to get more info.